Tetrakis(μ-4-tert-butylbenzoato)-κ3O:O,O′;κ3O,O′:O′;κ4O:O′-bis[aquabis(4-tert-butylbenzoato-κ2O,O′)(4-tert-butylbenzoic acid-κO)praseodymium(III)

Abstract

The reaction of praseodymium nitrate and 4-tert-butyl­benzoic acid (tBBAH) in aqueous solution yielded the dinuclear title complex, [Pr2(C11H13O2)6(C11H14O2)2(H2O)2], which has non-crystallographic Ci symmetry. The two PrIII ions are linked by two bridging and two bridging–chelating tBBA ligands, with a Pr⋯Pr separation of 4.0817 (9) Å. Each PrIII ion is nine-coordinated by one chelating tBBA ion, one monodentate tBBAH ligand and one water mol­ecule in a distorted tricapped trigonal–prismatic environment. The complex mol­ecules are linked into infinite chains along the c axis by inter­molecular O—H⋯O hydrogen bonds.